Not particularly tough, has a 'you are paralysed' proc abilty but I cant determine what it actually does, it certianly doesnt stop me from running away from it :)
The only danger in fighting this mini-boss is having her smaller friends (leevel 16-17ish) respawn on you whilst fighting. You can clear the room without safely before engaging her as non of the scorps are linked, they may BAF to larger groups I dont know as I enjoy dungeons more when in smaller groups.